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Greenheck says its new Model SWD is the industry’s first direct drive, backward-inclined utility fan to utilize an electronically commutated (EC) motor. Powered by Greenheck’s energy efficient Vari-Green® motor, Model SWD achieves the performance of Greenheck’s Model SWB belt-drive centrifugal utility fan, including higher operating efficiencies and higher pressure capabilities, available for variable volume airflow applications without the need to change belts. Available in seven sizes with capacities from 100 to 5,860 CFM and up to 2.5 in. wg, Model SWD is suitable for ducted exhaust, supply and return-air applications typically found in commercial kitchens and fume hoods.